<%--
  Created by IntelliJ IDEA.
  User: 杨威
  Date: 2021/9/15
  Time: 14:38
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
${9>2}
<%
    request.setAttribute("str",null);
    request.setAttribute("str2","");
    request.setAttribute("str3"," ");
%>
${empty str}
${empty str2}
${empty str3}
<%=request.getContextPath()%>
${pageContext.request.contextPath}
${cookie}
</body>
</html>
